My Story on My Stepsister’s Secret Account

Following his mother’s remarriage, Minseong finds himself adjusting to a new household and an unexpected living arrangement with his stepsister, Sohyun. Their shared domestic life takes a jarring turn when he accidentally sees her unclothed. Rather than simply feeling embarrassed, Minseong is struck by an unsettling sense of recognition. The distinct pattern of moles on her chest perfectly matches those of an anonymous woman featured on a secret, explicit social media account that a friend had previously shown him. Desperate to maintain his sanity and the fragile peace of his newly blended family, Minseong attempts to dismiss the resemblance as a bizarre coincidence. He convinces himself that it is impossible for his seemingly ordinary stepsister to be the subject of such illicit content. However, his efforts to bury the suspicion are abruptly shattered when a brand-new post appears on the hidden account. As the digital evidence mounts, Minseong is forced to confront a deeply uncomfortable reality, leaving him trapped between exposing a dangerous secret and protecting the delicate dynamics of his home.